Fruit of roses is called

The fruit of roses is called Rose hips.
The hip (also referred to as a hep or haw) is the fruit of a rose and like all fruit it develops after the fertilization of the flower occurs. When the flower is spared from deadheading, many small seeds called achenes grow inside and the hip swells.
Rose hips are used in bread and pies, jam, jelly, marmalade, syrup, soup, tea, wine and other beverages.